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3 years ago

You invest in $5,000 in an account earning simple interests. The balance after 6 years is $6,200. What is the interests rate?

Mathematics

1 answer:

shtirl [24]3 years ago

4 0

Answer:

The interest rate is 4% per annum.

Step-by-step explanation:

Let the interest rate that I am getting is r% per annum.

So, my $5000 investment becomes $6200 after getting r% simple interest for 6 years.

So, from formula of simple interest we can write

$6200 = 5000(1 +\frac{rt}{100})$

⇒ $1.24 = 1 + \frac{6r}{100}$

⇒ $\frac{6r}{100} = 0.24$

⇒ r = 4%

Therefore, the interest rate is 4% per annum. (Answer)

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Please Help!!

algol13

When you see questions of this nature, test the individual inequalities and look out for their intersection.

For
$y < \frac{2}{3} x$
Choose a point in the lower or upper half plane created by the line
$y = \frac{2}{3} x$
The above line is the one which goes through the origin.

Now testing (1,0) yields,

$0 < \frac{2}{3} (1)$
That is,

$0 < \frac{2}{3}$
This statement is true. So we shade the lower half of
$y = \frac{2}{3} x$

For
$y \geqslant - x + 2$
We test for the origin because, it is not passing through the origin.

$0 \geqslant - (0) + 2$
This yields
$0 \geqslant 2$
This statement is false so we shade the upper half.

The intersection is the region shaded in B. The top right graph

8 0

3 years ago

Simplify.<br><br><br><br> Enter your answer, in simplest radical form, in the box.

puteri [66]

24.75 rounded might be 25

5 0

2 years ago

Read 2 more answers

What will be the next in the series 2,60,10,120,30,?

grandymaker [24]

2 to 60 is 58 -48 is 10
so you have think what sort of maths skills are used like it could n+58 -48 then square or something ,but check what the differences are between the numbers.
hope it helped.

8 0

3 years ago

Evaluate the expression n-f x 8 if n= 84.15 and f=1.8

Gnesinka [82]

84.15-1.8*8
Order of Operations says to add and subtract before you multiply, so simplify the expression to: 82.35*8, which is 658.8

6 0

2 years ago

Kenny is 8 years older than Andrew. Tim is 3 times

9966 [12]

Answer:

Kenny is 18 years old Andrew is 10 years old Tim is 30 years old and Cameron is 5 years old

Step-by-step explanation:

Let a be Kenny's age , b be Andrew's age , c be Tim's age , d be Cameron's age

( b < a , b<c , d<b)

Kenny is 8 years older than Andrewn = > a = b + 8 (1)

Tim is 3 times as old as Andrew => c = 3 . b (2)

Cameron is 5 years younger than Andrew => d = b-5 (3)

The combined age of the four is 63 => a+b+c+d = 63 (4)

(1),(2),(3),(4) => b+8 + b + 3b + b-5 = 63 <=> 6b + 3 = 63 <=> b = 10

=> a= 10+8 =18, c = 3 . 10 = 30, d= 5

5 0

3 years ago